Roller-bearing.



S. KAYE.

ROLLER BEARING.

APPLIUATIOH nun) mu 2,1908.

922,288. Patented May 18, 1909.

Wit" use:

WWKWJA SAMUEL KAYE, ()l COLUMBUS, MISSISSIPPI.

ROLLER-BEARING.

Specification of Letters Patent.

Patented May 18, 1909.

I Application filed May 2, 1908. Serial No. 430,574.

To all whom it may concern:

Be it known that I, SAMUEL Kara, a citizen of the United States, residing at Columbus, in the county of Lowndes and State of Mississi pi, have invented certain new and. useful mprovcments in Roller-Bearings, of which the following is a specification.

My invention relates to an improvement in roller bearings, the primary ob ect being to reduce lriction to a minimum, and in tact practically eliminate all rubbing friction; and with this object in View, my present invention consists in a plurality of rollers arranged around a journal bearing in sets of threes, with the intermediate roller of a relatively small diameter, and the axial centers of the three rollers in each set held in parallelism and in perfect alinement wit one another, and means located at each en of the rollers for maintaining this parallelism and alinem'ent.

My invention further consists in certain novel features of construction, and combinations of parts which will be hereinafter described and pointed out in the claims.

In the accompanying drawings :Fi ure 1 is a longitudina section, Fig. 2 is an em view with the collar removed, Fig. 3 is a view of one of the large rollers, Fig. 4 is a view of one of the small rollers, Fig. 5 is a modification of the roller, Fi s. 6 and 7 are views of preferred forms 0 links. Figs. 8 and 9 are views of modifications of the link and Fig. 10 is an edge view of the form of link shown in Fig. 9.

A, represents the shaft or journal hearing, and the numerals 1, 2, and 3, indicate the rollers forming one set of roller hearings.

The rollers l and 3, are of correspoiulingi $17.0, and relatively large diameter, and the intermediate roller 2 of much smaller (llitlilOltl', and interposedbetween the two larger l'UllClS on either side, in order to prevent ruhliing friction as the large rollers turn in the same direction. The axial centers of these sets of rollers are held parallel and in perfect alincment with one another, and this parallelism and aliiicmcnt is maintained by moans of links 4, -4, of any approved construction, three of which forms I have illustrated. 'lhisimplest of those is shown in Figs. (5 and 7, and it simply consists of a ilat plate of metal having ii centrally located round hole 6.

1 described, the links might be made in one therein which the ends of the smaller roller 2 enter and perfectly lit, whereas the end holes 7, 7, are more or less elongated to receive the l l) and H),

ends of the larger rollers, thus permitting them to play laterally more or less therein. 'lhe link 4 shown in Fig. 8 has an elongated slot 7 which receives the shanks of three of the rollers, and the link 4 shown in Figs. 9 and 10 has a tongue 13 which is adapted to be held in the bifurcated portion 14 of the link next in line by the ends of the larger rollers passing through the holes 7, 7. But by reason of the links having three holes 6, and 7, 7, therein, both the parallelism and iilii'iement of the axial centers of the rollers are always maintained with absolute precision, and this is indicated by the line X in Fig. 2, drawn through the axial centers of one of these sets of rollers. By reason of this per fect alineinent of the axial centers'of the rollers forming the various sets of rollers maintained by the links, it will be seen that the bearing of the larger rollers upon the smaller intermediate roller is at directly opposite points so that no crowding, twisting, or frictional action takes place, but on the contrary an anti-friction bearing is provided and maintained at all times, which is a feature of my invention, which I desire to emphasize and bring into prominence. If, on the other hand, these axial centers were out of slimement, the tendenc would be to crowd the center roller still farther out of alinenient, thus greatly increasing the friction, which it is the purpose of my invention to reduce to a minimum. In order to prevent any rubbing friction, should there be any tendencv in that direction, either the ends of the rollers may he rounded to reduce their hearing contact shown in the smaller intermediate roller 01' Fig. l, at 8, 8, or balls 9, 9, might he received in concave recesses 10, ll), formed in the ends of the larger rollers, oiathc outer links might l-c soiilcwhul; increased in thickness beyond the ends of the rollers to receive these halls. Any end thrust which. might occasionally result, would then he sustained lr the balls 9, l), on the reduced ends of the ro lers.

'lwo forms of rollers are shown, one in which the reduced ends are an integral part 3 ol' the main central portion, or they might be made of two parts as shown in Fig. 5, of the drawings, namely comprising a central axis, and a sleeve mounted thereon.

As a Sllglll;lliOlllllUtltlOll of the'form of link i piece bifurcated at one end as shown in Figs.

The links are retained on the ends of the rollers by means of boxes or collars 12, 12.

From the fore 'oing it will be observed that l the links through which the ends of the rollers extend, form a circle around the shaft, and move around the latter as the shaft turns. The smaller rollers which revolve in the center orifices of the links, are held in axial alinement and parallelism with the axes of the larger rollers by means of these links, therch y holding the lar er rollers separated, as the smaller rollers p aced in this way, revolve at just the right speed to accommodate each of the lar er rollers with which the in termediate rollers come in contact. The ends of the smaller: rollers turn in the round hole at the center of the links, while the larger rollers revolve in the elongated holes in each end of the links, which links take care of the varying conditions of the lit 0f the rollers against the surface upon which they bear. In this way rubhin' friction is not only reduced but eliminate altogether, and at the same time the entire bearing is simple and composed of few parts, and these various arts which go to ma e up the bearin are so held in alinement and parallelism at a l times that the possibility of binding or twisting or frictional contact is precluded. A

It is evident that more or less slight changes might be resorted to in the form and arrangement of the several parts described without departing from the spirit and scope of my invention, and hence I do not wish to limit myself to the exact construction herein set forth, but:-

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is

l. A roller bearing comprising a shaft, large and small rollers arran ed alternately around the shaft, and links or maintaining an axial alinernent of three rollers.

2. A. roller bearing comprising a shaft, large and small rollers arranged alternately around the shaft, and links connectin the journals of two large and one small rol er in alineinent with one another.

3. A roller bearing comprising a shaft, rollers of two diameters alternately arranged, the larger rollers bearing u )on the shaft, and the smaller rollers u on t e adjacent larger rollers on each side t iereof, and links having orifices therein to receive the journals of two large and one small roller to maintain their alinement.

4. A roller bearing comprising a shaft, rollers of two diameters alternately arranged, the larger rollers bearing upon the shaft and the smaller rollers u on the adjacent larger rollers on each side tllereof and links having orifices therein to receive the journals of two large and one small roller to maintain their alinement, the ends of the rollers provided with convex bearings to reduce end thrust friction at that point.

In testimony whereof I afiix my signature in presence of two witnesses.

- 'S ML. KAYE.

Witnesses:

HERBERT C. EMERY, VERNON E. Homes. 

